Question

Define Block device and character device.

Answer 1

Answer:

Explanation:

A Character ('c') Device is one with which the Driver communicates by sending and receiving single characters (bytes, octets).

A Block ('b') Device is one with which the Driver communicates by sending entire blocks of data.

Examples for Character Devices: serial ports, parallel ports, sounds cards.

Examples for Block Devices: hard disks, USB cameras, Disk-On-Key.

For the user, the type of the Device (block or character) does not matter - you just care that this is a hard disk partition or a sound card.

Driver programmers, however, do care, but that's beyond our scope.

Answer 2

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